JPS53117336A - Optical character reader - Google Patents
Optical character readerInfo
- Publication number
- JPS53117336A JPS53117336A JP3151577A JP3151577A JPS53117336A JP S53117336 A JPS53117336 A JP S53117336A JP 3151577 A JP3151577 A JP 3151577A JP 3151577 A JP3151577 A JP 3151577A JP S53117336 A JPS53117336 A JP S53117336A
- Authority
- JP
- Japan
- Prior art keywords
- optical character
- character reader
- scanning period
- mean values
- shade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Character Input (AREA)
Abstract
PURPOSE: To obtain accurate character information without being influenced by the shade of a character, etc., by trying to calculate mean values of peak voltages at the white and black parts in the scanning period n times as long as the scanning period and by setting a slice level depending upon both the mean values.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3151577A JPS53117336A (en) | 1977-03-24 | 1977-03-24 | Optical character reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3151577A JPS53117336A (en) | 1977-03-24 | 1977-03-24 | Optical character reader |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS53117336A true JPS53117336A (en) | 1978-10-13 |
Family
ID=12333331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3151577A Pending JPS53117336A (en) | 1977-03-24 | 1977-03-24 | Optical character reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53117336A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60184280A (en) * | 1984-03-01 | 1985-09-19 | キヤノン株式会社 | Pattern converter |
-
1977
- 1977-03-24 JP JP3151577A patent/JPS53117336A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60184280A (en) * | 1984-03-01 | 1985-09-19 | キヤノン株式会社 | Pattern converter |
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